Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 650 · 40 questions

What you do (Shape makes strength): 1. Place two books 15 cm apart, low and steady. 2. Lay a flat sheet across and add coins one by one in the middle until it falls. 3. Fold the same kind of sheet into a zigzag and test it the same way. 4. Record the coins each shape holds, then wash your hands.

1. 1.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) coins (c) a ruler (d) sheets of paper
3. 3.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) one flat sheet (d) a zigzag-folded sheet
4. 4.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it sags and falls (d) it floats up
5. 5.True or false: two books is not needed for the paper bridge. (a) True (b) False
6. 6.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a roof frame (c) a round pillar (d) an eggshell
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
8. 8.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
9. 9.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a balloon (c) a mirror (d) sheets of paper
10. 10.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) high and wobbly (d) on top of a pet
11. 11.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) less (d) not at all
12. 12.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
13. 13.True or false: yeast is not needed for the paper bridge. (a) False (b) True
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) two books (c) sheets of paper (d) coins
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
16. 16.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
17. 17.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
18. 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the shape of the paper (c) the kind of coins (d) the gap between books
19. 19.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) paper with folded edges (d) a U-shaped channel
20. 20.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a magnet (c) a ruler (d) coins
22. 22.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
23. 23.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.True or false: a balloon is needed for the paper bridge. (a) True (b) False
25. 25.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
26. 26.True or false: a roof frame gets its strength from triangles. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a U-shaped channel (d) a torn flat sheet
28. 28.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) a U-shaped channel (c) paper with folded edges (d) rolled paper tubes
29. 29.🔍 Which is the odd one out? (a) rolled paper tubes (b) a torn flat sheet (c) a flat tissue (d) one flat sheet
30. 30.🔍 Which is the odd one out? (a) a wet flat sheet (b) paper with folded edges (c) a flat tissue (d) a torn flat sheet
31. 31.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) two books (c) a ruler (d) coins
33. 33.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the heart shape (c) the square (d) the star
34. 34.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
35. 35.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a battery cell (c) a ruler (d) a mirror
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
37. 37.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
38. 38.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
39. 39.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) a torn flat sheet (d) one flat sheet

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